Ring (novel series)

Ring (リング, Ringu) is a series of horror novels written by Koji Suzuki. The novels were initially a trilogy, consisting of Ring, Spiral, and Loop. A short story collection called Birthday was released shortly after, introducing extra stories interconnecting the trilogy. Two further books, S and Tide, were published in 2012 and 2013, respectively.

The novels revolve around a curse, embodied within a videotape, unleashed by Sadako Yamamura, the ghost of a psychic who was raped and murdered before being thrown into a well.

The success of the novels led to the release of numerous film adaptations in Japan, South Korea, and the United States.